That's what I typically do when I must. I find it yields much more readable tests than mocking does, and they're less likely to accidentally become tautological

That's what I typically do when I must. I find it yields much more readable tests than mocking does, and they're less likely to accidentally become tautological. That said, discrepancies can still sink in, so I think it's best to also have some baseline level of tests that run against the real dependency, even if they're typically only run overnight on the CI server.